1058 - Parallelogram Counting 计算几何
摘要:
1058 - Parallelogram Counting There are n distinct points in the plane, given by their integer coordinates. Find the number of parallelograms whose ve 阅读全文
posted @ 2017-07-14 10:37 缄默。 阅读(135) 评论(0) 推荐(0) 编辑